Random Key Practice vs SubPulse
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Random Key Practice
Practice musical chords, licks, and scales across all keys. A random key is displayed every two beats, accompanied by an adjustable metronome for timing.
- Practice chords, licks, and scales
- Supports all musical keys
- Adjustable metronome
- Random key generation
- Displays new key every two beats
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Practice your chords, licks and scales in all keys. Adjust the metronome as you want, a random key will appear on the screen for every two beets.
SubPulse
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Basic metronomes just keep time. SubPulse trains it. SubPulse is the only metronome with named training methods used by world-class musicians — and it's 100% free. No subscriptions, no ads, no account. Forever. THE TABLE OF TIME — THE JOE MORELLO METHOD The legendary practice system of Joe Morello, the drummer behind "Take Five". At each BPM level, SubPulse automatically cycles through subdivisions — quarters, eighths, sixteenths, triplets — then increases the tempo and repeats. No other metronome can do this. PUSH-PULL — TRAIN BOTH DIRECTIONS Most musicians only practice speeding up. Push-Pull alternates tempo increases AND decreases, so you build genuine tempo control instead of unconscious rushing. Unique to SubPulse. AUTO PROGRESSION — BUILD SPEED ON AUTOPILOT Set your starting tempo and your goal. SubPulse increases the BPM gradually while you stay in the flow state. No interruptions, no manual adjustments. EVERYTHING YOU NEED • Precision metronome, 30–300 BPM • Time signatures: 4/4, 3/4, 6/8, 5/4, 7/8 • Subdivisions: quarters, eighths, sixteenths, triplets • Tap Tempo — detect any BPM by tapping • Practice presets to save your routines • Haptic feedback, adjustable click pitch, screen stays awake • Works offline. In English, Spanish and Portuguese FOR EVERY MUSICIAN Drums, guitar, piano, bass, any instrument — from your first metronome session to advanced subdivision mastery. 100% FREE. FOREVER. No paywall, no trial, no locked features. Download and start practicing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
The clearest difference is in-app purchases: Random Key Practice at none against SubPulse's 1. Random Key Practice also leads on iOS requirement (11.0 vs 15.1). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SubPulse sells 1 in-app purchase, starting at $14.99 per year. Random Key Practice asks for nothing beyond the download.
| Parameter | Random Key Practice | SubPulse |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 9 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Audun Jørstad Lillekjendlie | Alejandro Rodriguez |
In-app purchases
Random Key Practice
No in-app purchases
SubPulse
- SubPulse Premium14 Days trial$14.991 Year









